Modified calcium carbonate with flame-retardant effect and preparation method thereof

A calcium carbonate, modified technology, applied in chemical instruments and methods, dyeing low molecular organic compound treatment, dyeing high molecular organic compound treatment, etc., can solve problems such as defects, cracks, bubbles, etc., and achieve cost increase and good dispersion Effect

Inactive Publication Date: 2015-02-18
安徽温禾新材料科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the addition of dispersants and surface modifiers greatly reduces the temperature window of nano-calcium carbonate, because commonly used dispersants and coupling agents are easy to decompose at high temperatures, causing bubbles, cracks, defects, deformation, etc., thus Affect the appearance, heat resistance and mechanical properties of materials

Method used

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  • Modified calcium carbonate with flame-retardant effect and preparation method thereof

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Embodiment Construction

[0012] specific implementation plan

[0013] The present invention will be described in detail below through specific examples.

[0014] A modified calcium carbonate with flame retardant effect, prepared from the following raw materials in parts by weight (kg): calcium carbonate 90, carbide slag powder 3, vermiculite powder 3, antimony trioxide 2, asbestos fiber 1, zinc borate 2. Crush nut shells 2, isooctyl acrylate 6, acetyl citrate 5, EVA wax 3, tetrabromobisphenol a 1, modified titanium dioxide 3;

[0015] The modified titanium dioxide is made of the following raw materials in parts by weight (kg): nano-titanium dioxide 50, magnesium hydroxide 2, ethyl cellulose 4, n-butyl acrylate 5, quartz powder 3, polyisobutylene 3, alkyd resin 3 , terpineol 2, water 50; the preparation method is to first add n-butyl acrylate, nano-titanium dioxide, magnesium hydroxide, ethyl cellulose, and water to stir evenly to form a suspension, and dry it at 45-50°C until the water content 2-3%,...

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Abstract

The invention discloses modified calcium carbonate with a flame-retardant effect. The modified calcium carbonate is characterized by being prepared from the following raw materials in parts by weight: 90-95 parts of calcium carbonate, 3-5 parts of carbide slag powder, 3-4 parts of vermiculite powder, 2-4 parts of antimonous oxide, 1-2 parts of asbestos fibers, 2-3 parts of zinc borate, 2-4 parts of ground nutshells, 6-8 parts of iso-octyl acrylate, 5-7 parts of acetyl citrate, 3-5 parts of EVA (ethylene vinyl acetate) wax, 1-2 parts of bromobisphenol a and 3-4 parts of modified titanium dioxide. According to modified calcium carbonate, flame-retardant components such as antimonous oxide and zinc borate are added for coating, and modified titanium dioxide is added after grinding, so that the dispersity is good and the cost increment due to raw material waste cannot be caused; fillers are used for producing assistants such as coatings, pigments and rubber.

Description

technical field [0001] The invention relates to the field of industrial fillers, in particular to a modified calcium carbonate with flame-retardant effect and a preparation method thereof. Background technique [0002] Calcium carbonate is a very important functional inorganic filler, which is widely used in industrial fields such as plastics, rubber, coatings and papermaking. In the application field of calcium carbonate, most products belong to the category of polymers, such as plastics, rubber, adhesives, coatings, etc., and occupy an important market share. Modifiers play an important role in the performance and application of nano calcium carbonate. For example, the addition of dispersant can reduce the agglomeration of nanoparticles and improve the dispersion; the addition of surface modifier can improve the compatibility of nano-calcium carbonate in the polymer system. It can be seen that dispersants and surface modifiers are crucial for the application of nano-calc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/06C09C3/08C09C1/36C09C3/10
Inventor 温中苏
Owner 安徽温禾新材料科技股份有限公司
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